Dutch app developer

Joost Gunterman

Need more info?

Please feel free to contact us via phone or email. We will be happy to help.

DTT - professional app developer on a Dutch market


DTT has gained reputation of a professional app developer on a Dutch market. We have worked with more than 100 customers and have developed more than 50 apps on different platforms. And we keep growing and getting better. We started as a small company and in 6 years have grown to a formidable professional company that is well known in the Netherlands. How did we do that? Only by applying tremendous efforts, through hard work and through wise and determined policy. DTT is proud of the achieved results but always looks for more. We are constantly growing and we don't plan to stop. 

We appreciate your feedback

We value each client and appreciate every opinion and feedback that our customers provide us with. Our references are the best testimonial for the quality of our works and the level of service that we provide. Most of the clients underline the transparency and good communication in our work. This is one of the key principles that we base our company on. We know how important it is to keep the client up to date and keep him informed about all stages of work. Thus the client has a feeling of involvement in the process and control over the project. 

Wide range of services

Secondly, our range of services includes development of apps for iPhone, iPad, Android, HTML5 and games. We develop native apps and apps that work on all browsers. Our best examples of the apps include OSR star finder app. It is an ap that can locate a particular star on the night sky using Augmented reality. Isn't it cool to navigate through night sky, find stars and even buy your own star? We at DTT are very proud to collaborate with OSR. Another fine example is our own "child" - Pokerconnect game - a first cross platform poker game. With that solution you can enjoy playing poker together with your friends on iOS and Android. This is a great app to unite the Apple fans and Android followers. End of the disputes, which device is better! Just play along and enjoy the company.

Team of professionals

Thirdly, it is our team, that works day and night for you. We have carefullly selected the right people in the right place. Talented project managers that monitor the whole process, coordinate work of all departements and keep the communication going. Experienced and daring developers that always think of new ways to solve the task. Online marketing team that promotes your app. Every person is important in our team, those are the small cogs that makes the DTT machine work for you. 

BEDRIJFS-APPS ontwikkeld door DTT

business apps

DTT has extensive experience in developing business apps for both public and in-house distribution. We have developed such apps as ING Marketing day app and BAM Inspiration solution.

CONSUMENTEN APPS ontwikkeld door DTT

consumer APPS

Our aps have great succces in the app stores. Among our most popular apps are RIVM Tick bite awareness app , Doula Labor Coach app and OSR Augmented Reality app.

Game apps ontwikkeld door DTT

Game apps

Game apps are an effective and fun way to support a campaign and increase customers' loyalty. Our most fine examples of the developed games are Krasloten December game and PokerConnect app.

WEB OPLOSSINGEN ontwikkeld door DTT

WEB solutions

Apart from apps DTT specializes in developing sucessfull websites for different purposes. HG Webshop and HG Order Portal are few examples of the web solutions we have made.


An app development process at DTT


DTT has a result-oriented policy for all projects. It means that we strive for such a result when the client is satisfied and when we consider that we done everything we could to make the project a success.

An app starts with an idea. Do you have an idea of your future app? We bet you do! Come to DTT and we will make it grow bigger. First we will listen and discuss the possibilities of your app idea and the potential of it. This is a very important stage because during talks and proposals we have more and more ideas born. It's amazing how a small idea grows into a big plan. Second stage is the proposal development. Here our experienced desgners and project managers devise a sketch of how your app will look like on the device. You will actually see your app on the phone, but just on paper! We give you a rough idea of the app and functionalities. Your feedback is essential here. Then we devise a technical plan where we mention all specific details and functionalities of the app. After your approval we start the development itself, when our talented developers turn your idea into written code. After that comes the testing and bug fixing stage. And voila - your idea is now live in the App Store!

You are always welcome to visit our Amsterdam office that is conveniently situated in the centre of Amsterdam on Sint Nicolaasstraat 9. We hope that we will have a meaningfull dialogue over the cup of excellent coffee. Please don't hesitate to make an appointment, contact us via mail or call us directly for further details.

Testimonials from our clients


ING Bank

Stephan Swerissen, Formula Manager Sparen en Beleggen

"We would like to emphasize:

  • Young, enthusiastic, technical and professional employees
  • Quick feedback + Good communication via phone / email 
  • Good at executing a concrete idea"

De Lotto

Fiona Mirrer, Coordinator Marketing Communication

"For our most popular and best-known lottery scratch-card, December Calendar, we came up with the idea to develop a fun game that you can play both on the PC and on your phone. For this, we started looking for a multimedia partner and found DTT. Despite the short timetable, DTT has made a super game: the December Calendar game. This game, starring the penguins from the December Calendar 2014  lottery scratchcards, is based on an existing game and is intended as a free fun bonus. You can't win (money) prizes, but you can get the highest score! Communication was smooth, clear and fast and we could always turn to DTT if we had questions. DTT also thought actively with us on how we could generate more downloads and gave us good advice where necessary. In short, DTT has been an excellent partner. We will certainly continue working with DTT in future."

Joost Gunterman

Need more info?

Please feel free to contact us via phone or email. We will be happy to help.